An IR Photodetector Using an Optically Cooled Micromirror as a Light Pressure Sensor

We consider mid-infrared (5 to 25 micrometers), optically cooled detectors based on a microcantilever sensor of the radiation pressure. A significant enhancement of sensitivity is achieved due the combination of low effective temperature (10 K), non-absorption detection, and a high quality optical m...

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Bibliographic Details
Main Authors Berman, Gennady P, Chernobrod, Boris M, Bishop, Alan R, Mohideen, Umar
Format Journal Article
LanguageEnglish
Published 21.12.2009
Subjects
Physics - Mesoscale and Nanoscale Physics
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Summary:We consider mid-infrared (5 to 25 micrometers), optically cooled detectors based on a microcantilever sensor of the radiation pressure. A significant enhancement of sensitivity is achieved due the combination of low effective temperature (10 K), non-absorption detection, and a high quality optical microcavity. Applications to spectrometry are examined. It is shown that an optically cooled radiation pressure sensor potentially has a sensitivity an order of magnitude better than the best conventional uncooled detectors.
Bibliography:LA-UR 09-08209
DOI:10.48550/arxiv.0912.4218